Merge "Disable user switching when the device is factory resetting." into...

Merge "Disable user switching when the device is factory resetting." into sc-v2-dev am: 2ddeab71 am: 82eabb43 am: 08e47712

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17224796

Change-Id: Ic8e5b5a0ce5a34fb2c0a6ae6a7618b90bab62f02